1989: CNRI interconnects MCImail to the Internet (a wise policy choice).
1990: Backbone speed increased to 1.5Mbps by IBM and MCI. Roughly 250,000 hosts, 1,500 networks.
1992: NCSA Mosaic stimulates explosive growth of the World Wide Web.
1995: Full commercialization, at 45Mbps. Roughly 6,000,000 hosts and 50,000 networks. The phone company, the cable company, and the online services discover the Internet.